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. G. L. JAEGER.

SHEET DELIVERY APPARATUS.

No. 246,514. Patented Aug. 30,1881.

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STATES PATENT Darren.

GUSTAV L. JAEGER, OF NEW YORK, N. Y.

SH EET-DELIVERY APPARATUS.

SPECIFICATION forming part of Letters Patent No. 246,514, dated August30, 1881.

Application filed June 11, 1881.

To all whom it may concern:

Be it known that I, GUSTAV L. JAEGER, a citizen of the United States,residing at New York, in the county and State of New York, have inventednew and useful Improvements in Sheet-Delivering Apparatus for Printing-Presses, of which the following is a specification.

This invention relates to apparatus for delivering the printed sheetsfrom a printingpress; and it consists in certain novel com binations,hereinafter fully set forth, with the impression-cylinder, of a flyconstructed with a griper (one or more) adapted to seize the sheet as itleaves the cylinder and release it at the desired place, the fly havinga vibrating motion and the griper closing in the forward or deliverymovement and opening in the return movement thereof, a sheet-guard, anair-blast device adapted to force the tail end or portion of the sheetagainst the guard, and a deliveryroller arranged in superficial contactwith the cylinder.

This invention is illustrated in the accompanying drawings, in whichFigure 1 represents a vertical longitudinal section. Fig. 2 is a sideelevation. Fig. 3 shows the fly detached. Fig. at illustrates amodification of the fly.

Similar letters indicate corresponding parts.

The letter A designates the impression-cylinder; B,th e fly; G, thefly-griper; D,1hesheetguard; E, the air-blast device, and F thedelivery-roller.

The cylinder A is provided with a griper, g, for seizing the sheet to beprinted, and also, preferably, with a throwing-oft dog, 71, acting onthe leading end of the sheet when it is released by the cylinder-griper.The fly B is hung on arock-shaft, i, to which motion is imparted in onedirection by a cam, j, which is fixed to the shaft of theimpression-cylinder and acts on a cord, is, wound on the rock-shaft, andin the other direction by a weight, I, attached to such cord or by anyother suitable mechanism.

At its free end the fly B is bent toward the impression-cylinder,forming a jaw, n, and the griper O is provided with a similarjaw, 0,while the shank of the griper is connected at its lower end to an arm,p, fixed to the rock-shaft, and at an intermediate point to the fly by alink,

(No model.)

When the rock-sh aft i turns in the direction of the arrow markedopposite to it, the arm 10 acts on the shank of the griper and causesits jaws to close on the jaw of the fly, thus seizing the sheet of paperthat may be presented to it, while the fly then moves forward to deliverthe sheet, and when the rock-shaft turns in the opposite direction thegriper is actuated to bring its jaw away from the jaw of the fly, thelatter thereupon performing its return movement. The delivery motion ofthe fly B is timed to correspond in speed with that of the printed sheetleaving the cylinder A, and the extent of its delivery motion is suchthat the printed sheet is thereby deposited on the fly-table (not shown)in a reversed condition namely, face uppermost-while at the end of itsreturn movement the fly is brought to a position for receiving theleading end of the sheet under the jaw 0 of the griper as the sheetleaves the cylinder.

If desired, the griper-jaw 0 may be swiveled and combined witha cam forthrowing it out away from the jaw a of the fly and allow theunobstructed delivery of the sheet at the se leoted place. The fly B,moreover, may be arranged to receive a revolving or a reciprocatingmotion instead of a vibrating motion, and it may also be composed ofdisks and arranged to release the sheet at a given point beneath thefly-shaft.

I construct the flyB with its griper or gripers of independent sections,as shown in Fig. 3, and make these sections adjustable lengthwise to theshaft 1', so that the place at which the fly-griper takes hold of thesheet may be varied to avoid contact thereof with a printed portion ofthe sheet; but it may be constructed in a continuous piece.

The guard D consists of a plate or a series of strips secured to themachine-frame above the path of the fly B, and it is preferably madeconcentric with the fly-shal't 1, as shown, and the air-blast device Eis arranged opposite to the guard, the same consisting of a revolvingfan partially surrounded by a shell, 1', whereby the airblast is spreador diffused over the guard. \Vhen the tail end or portion of the printedsheet leaves the impression-cylinder it is forced against the guard Dbythe air-blast, and by this means the sheet is sustained or guided,while the face thereof is kept entirely free of contact with the fly,which is a desideratum, especially in chromatic printing. The guard Dterminates at a suitable point to allow the reversal of the sheet afterits tail end has left the guard, and the fan E is located forward of andbetween the independent sections of the fly; but, if desired, the fanmay be arranged in rear of the fly.

The delivery-rollerF is composed of the usual disks, (one or l'llOI6,)arranged in superficial contact with the cylinder A, and it is placed atsuch a part of the cylinder that the leading end of the sheet is caughtby the deliveryroller when it is released by the cylinder-griper g, andis thereby presented to the fly-griper.

The griper-fiy C may be arranged, as shown in Fig. 4, to deposit thesheet directly on another fly, which turns the sheet and brings it ontothe receiving-table.

When the throwing-off dog is used the jaw of the fiy-griper, as well asthe throwing-off dog, may be constructed with teeth or fingers, allowingthe edge of one to pass within or beyond the edge of the other, and thusinsuring the seizure of the printed sheet by the fly griper.

If desired, the shell 1 of the fan may be made adjustable, to allow thedirection of the airblast to be varied; or it may be made movable, tocause the air-blast to follow the sheet; and if desired, moreover,aperforated pipe maybe substituted for the fan and shell, this pipebeing connected to a fan-blower.

What I claim as new, and desire to secure by Letters Patent, is-

1. The combination, substantially as hereinbefore set forth, with theimpression-cylinder, of the griper-tly, the sheet-guard, and theairblast device, adapted to force the tail end or portion of the sheetagainst the guard.

2. The combination, substantially as hereiubefore set forth, with theimpression-cylinder, of the delivery-roller, arranged in superficialcontact with the cylinder, and the griper-fly co-operating with suchroller.

In testimony whereof I have hereunto set my hand and seal in thepresence of two subscribing witnesses.

GUSTAV L. JAEG-ER.

Witnesses:

XV. HAUFF, CHAS. WAHLERS.

